This recipe, from cookbook author Alice Medrich, appeared in our 2012 Cookie Advent Calendar. Alice says: "When developing this recipe for my cookbook Chewy Gooey Crispy Crunchy Melt-in-Your-Mouth Cookies, I really wanted something whimsical, and a bit over-the-top, that would delight a child as well as the most jaded sophisticate. Voila! A cakey brownie loaded with yummy: gooey caramels and marshmallows, crunchy nuts, and melty shards of chocolate. Yes, these are naughty—in the nicest possible way!"